Study of Atmospheric Neutrino Oscillation Parameters at the INO-ICAL Detector Using ν<inf>e</inf>+ N→ e+ X Events

The India-based Neutrino Observatory will host a 50 kton magnetised tracking iron calorimeter with resistive plate chambers as its active detector element. We present the direction reconstruction of electron neutrino events with ICAL and the sensitivity of these events to neutrino oscillation parameters θ23 and δCP. We find that ICAL has adequate sensitivity to the CP violating phase δCP, with regions ranging δCP∼130 – 295∘ being excluded at 1 σ for δCP,true= 0∘, from the sub-dominant electron neutrino oscillation channels. We also obtain a relative 1 σ precision of 20% on the mixing parameter sin2θ23. We neither discuss the possible backgrounds to νe interaction in ICAL nor investigate the effect of systematic uncertainties.